RS-485 Transceiver Control

串行端口的数字输出控制，本程序使用两个按钮使得用户通过按钮控制DTR和RTS的引脚电压。(Serial port of the digital output control, the program allows users to use two buttons through the button control DTR and RTS pin voltage.)

hdlc设计，包括flag检测，插0、串并转换等设计，采用verilog编程。(hdlc design, using verilog)

测试了TF卡根目录下的txt类型文件通过串口输出，支持长文件名(The test file of the txt type TF Card root directory output through the serial port, support for long file name)

使用perl实现简单的串口通信；在串口上循环读写命令，可用于对串口通信的压力测试；(Using perl simple serial communication read and write commands on the serial loop, can be used for serial communication test pressure )

说明：  瑞萨RL78/G13modbus通信例程(Renesas RL78/G13modbus communication routine)

串口读陀螺仪数据,利用VISA读取串口信号(Serial read gyroscope data)

说明：  此程序为多线程,多接收模式串口类，程序很全，适合新手学习，同是也可以根据自己的兴趣添加自己感兴趣的各个功能(This program is multi-threaded, multi-category serial receive mode, the program is very full, for beginners to learn, the same can also add your own according to their interest in the various features of interest)

一个外国人写的rs485串口通信程序，有原理图和源代码，全面实现了485协议(a foreigner writing RS485 serial communication procedures, schematic and source code, the full realization of the 485 agreement)

说明：  串口调试小程序，对初学者很有帮助，请放心下载。(Serial debugging program is very helpful for beginners, please feel free to download.)

通过读取PLC的opcserver中的数据并将数据上传至服务器，通过串口发给GPRS模块(By reading the PLC opcserver data and upload the data to the server, through the serial port to the GPRS module)